./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ............................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:58,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:58,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:58,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:58,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:58,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:58,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:58,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:58,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:58,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:58,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:58,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:58,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:58,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:58,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:58,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:58,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:58,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:58,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:58,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:58,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:58,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:58,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:58,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:58,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:58,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:58,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:58,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:58,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:58,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:58,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:58,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:58,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:58,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:58,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:58,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:58,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:58,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:58,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:58,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:58,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:58,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:15:58,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:58,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:58,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:58,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:58,190 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:58,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:58,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:58,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:15:58,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:58,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:58,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:58,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:58,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:58,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:58,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:58,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:58,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:58,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:58,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:58,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:58,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:58,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:58,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:58,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:58,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:58,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:15:58,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:15:58,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:58,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:58,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-20 00:15:58,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:58,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:58,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:58,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:58,425 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:58,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-20 00:15:58,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cc238fdb/21e6f3a0c6c547009e622e2cac8d89af/FLAG7f23c6fbf [2020-10-20 00:15:59,144 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:59,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-20 00:15:59,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cc238fdb/21e6f3a0c6c547009e622e2cac8d89af/FLAG7f23c6fbf [2020-10-20 00:15:59,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cc238fdb/21e6f3a0c6c547009e622e2cac8d89af [2020-10-20 00:15:59,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:59,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:59,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:59,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:59,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:59,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:59" (1/1) ... [2020-10-20 00:15:59,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29857944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:59, skipping insertion in model container [2020-10-20 00:15:59,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:59" (1/1) ... [2020-10-20 00:15:59,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:59,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:16:00,058 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1080) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-20 00:16:00,064 INFO L168 Benchmark]: Toolchain (without parser) took 576.56 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 16.3 MB in the beginning and 14.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:00,065 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 30.9 MB. Free memory was 7.2 MB in the beginning and 7.1 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:00,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.85 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 15.5 MB in the beginning and 14.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:00,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 30.9 MB. Free memory was 7.2 MB in the beginning and 7.1 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 564.85 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 15.5 MB in the beginning and 14.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:16:02,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:16:02,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:16:02,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:16:02,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:16:02,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:16:02,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:16:02,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:16:02,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:16:02,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:16:02,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:16:02,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:16:02,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:16:02,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:16:02,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:16:02,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:16:02,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:16:02,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:16:02,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:16:02,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:16:02,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:16:02,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:16:02,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:16:02,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:16:02,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:16:02,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:16:02,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:16:02,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:16:02,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:16:02,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:16:02,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:16:02,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:16:02,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:16:02,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:16:02,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:16:02,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:16:02,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:16:02,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:16:02,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:16:02,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:16:02,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:16:02,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:16:02,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:16:02,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:16:02,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:16:02,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:16:02,115 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:16:02,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:16:02,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:16:02,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:16:02,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:16:02,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:16:02,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:16:02,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:16:02,117 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:16:02,117 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:16:02,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:16:02,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:16:02,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:16:02,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:16:02,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:16:02,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:16:02,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:16:02,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:16:02,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:16:02,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:16:02,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:16:02,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:16:02,120 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:16:02,120 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:16:02,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:16:02,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:16:02,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:16:02,120 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-20 00:16:02,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:16:02,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:16:02,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:16:02,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:16:02,366 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:16:02,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-20 00:16:02,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/794053578/93071d382b5a4794b42078def83e6995/FLAG1a4d940f6 [2020-10-20 00:16:03,064 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:16:03,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-20 00:16:03,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/794053578/93071d382b5a4794b42078def83e6995/FLAG1a4d940f6 [2020-10-20 00:16:03,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/794053578/93071d382b5a4794b42078def83e6995 [2020-10-20 00:16:03,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:16:03,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:16:03,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:03,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:16:03,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:16:03,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:03" (1/1) ... [2020-10-20 00:16:03,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4756b890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:03, skipping insertion in model container [2020-10-20 00:16:03,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:03" (1/1) ... [2020-10-20 00:16:03,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:16:03,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:16:04,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:04,178 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:16:04,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:04,667 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:16:04,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04 WrapperNode [2020-10-20 00:16:04,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:04,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:04,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:16:04,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:16:04,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:04,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:16:04,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:16:04,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:16:04,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... [2020-10-20 00:16:04,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:16:04,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:16:04,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:16:04,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:16:04,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:16:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:16:04,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:16:04,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:16:10,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:16:10,075 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-20 00:16:10,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:10 BoogieIcfgContainer [2020-10-20 00:16:10,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:16:10,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:16:10,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:16:10,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:16:10,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:16:03" (1/3) ... [2020-10-20 00:16:10,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6845ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:10, skipping insertion in model container [2020-10-20 00:16:10,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:04" (2/3) ... [2020-10-20 00:16:10,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6845ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:10, skipping insertion in model container [2020-10-20 00:16:10,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:10" (3/3) ... [2020-10-20 00:16:10,084 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2020-10-20 00:16:10,093 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:16:10,100 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-20 00:16:10,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-20 00:16:10,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:16:10,145 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:16:10,145 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:16:10,146 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:16:10,146 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:16:10,146 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:16:10,147 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:16:10,147 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:16:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-20 00:16:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 00:16:10,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:10,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 00:16:10,185 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-10-20 00:16:10,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:16:10,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694359630] [2020-10-20 00:16:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:16:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:10,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 00:16:10,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:16:10,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:16:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:16:10,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694359630] [2020-10-20 00:16:10,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:16:10,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-20 00:16:10,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624145923] [2020-10-20 00:16:10,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:16:10,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:16:10,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:16:10,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:16:10,421 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-20 00:16:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:16:14,122 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2020-10-20 00:16:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:16:14,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-20 00:16:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:16:14,165 INFO L225 Difference]: With dead ends: 132 [2020-10-20 00:16:14,165 INFO L226 Difference]: Without dead ends: 54 [2020-10-20 00:16:14,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:16:14,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-20 00:16:14,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-20 00:16:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-20 00:16:14,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2020-10-20 00:16:14,208 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 5 [2020-10-20 00:16:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:16:14,208 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2020-10-20 00:16:14,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:16:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2020-10-20 00:16:14,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 00:16:14,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:14,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:16:14,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:16:14,426 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:14,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:14,427 INFO L82 PathProgramCache]: Analyzing trace with hash 442954858, now seen corresponding path program 1 times [2020-10-20 00:16:14,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:16:14,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123470727] [2020-10-20 00:16:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 00:16:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:14,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 00:16:14,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:14,888 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2020-10-20 00:16:14,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123470727] [2020-10-20 00:16:14,894 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:16:14,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1388267342] [2020-10-20 00:16:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 00:16:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:15,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 00:16:15,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:15,106 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:16:15,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993905009] [2020-10-20 00:16:15,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:16:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:15,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 00:16:15,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:15,196 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:16:15,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:16:15,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 00:16:15,198 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 00:16:15,198 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:16:15,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk,3 mathsat -unsat_core_generation=3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:16:15,846 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 00:16:15,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:16:15 BoogieIcfgContainer [2020-10-20 00:16:15,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:16:15,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:16:15,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:16:15,848 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:16:15,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:10" (3/4) ... [2020-10-20 00:16:15,853 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:16:15,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:16:15,855 INFO L168 Benchmark]: Toolchain (without parser) took 12491.83 ms. Allocated memory was 40.4 MB in the beginning and 60.8 MB in the end (delta: 20.4 MB). Free memory was 16.4 MB in the beginning and 28.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,856 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 30.9 MB. Free memory was 7.0 MB in the beginning and 7.0 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1298.87 ms. Allocated memory was 40.4 MB in the beginning and 50.3 MB in the end (delta: 10.0 MB). Free memory was 15.6 MB in the beginning and 15.4 MB in the end (delta: 203.2 kB). Peak memory consumption was 19.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.16 ms. Allocated memory is still 50.3 MB. Free memory was 15.4 MB in the beginning and 12.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,858 INFO L168 Benchmark]: Boogie Preprocessor took 41.83 ms. Allocated memory was 50.3 MB in the beginning and 55.1 MB in the end (delta: 4.7 MB). Free memory was 12.2 MB in the beginning and 36.2 MB in the end (delta: -24.0 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,859 INFO L168 Benchmark]: RCFGBuilder took 5272.54 ms. Allocated memory is still 55.1 MB. Free memory was 36.2 MB in the beginning and 13.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,860 INFO L168 Benchmark]: TraceAbstraction took 5769.10 ms. Allocated memory was 55.1 MB in the beginning and 60.8 MB in the end (delta: 5.8 MB). Free memory was 12.9 MB in the beginning and 29.3 MB in the end (delta: -16.4 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:16:15,861 INFO L168 Benchmark]: Witness Printer took 5.47 ms. Allocated memory is still 60.8 MB. Free memory was 29.3 MB in the beginning and 28.7 MB in the end (delta: 630.4 kB). Peak memory consumption was 630.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:15,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 30.9 MB. Free memory was 7.0 MB in the beginning and 7.0 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1298.87 ms. Allocated memory was 40.4 MB in the beginning and 50.3 MB in the end (delta: 10.0 MB). Free memory was 15.6 MB in the beginning and 15.4 MB in the end (delta: 203.2 kB). Peak memory consumption was 19.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 92.16 ms. Allocated memory is still 50.3 MB. Free memory was 15.4 MB in the beginning and 12.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 41.83 ms. Allocated memory was 50.3 MB in the beginning and 55.1 MB in the end (delta: 4.7 MB). Free memory was 12.2 MB in the beginning and 36.2 MB in the end (delta: -24.0 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 5272.54 ms. Allocated memory is still 55.1 MB. Free memory was 36.2 MB in the beginning and 13.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5769.10 ms. Allocated memory was 55.1 MB in the beginning and 60.8 MB in the end (delta: 5.8 MB). Free memory was 12.9 MB in the beginning and 29.3 MB in the end (delta: -16.4 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.47 ms. Allocated memory is still 60.8 MB. Free memory was 29.3 MB in the beginning and 28.7 MB in the end (delta: 630.4 kB). Peak memory consumption was 630.4 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 16]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L380] float smallestNormalFloat = 0x1.0p-126f; [L381] float largestSubnormalFloat = 0x1.fffffcp-127f; [L382] double v = 0x1.FFFFFFp-127; [L383] float f; [L384] COND FALSE !(!((sizeof (largestSubnormalFloat) == sizeof (float) ? __fpclassifyf (largestSubnormalFloat) : sizeof (largestSubnormalFloat) == sizeof (double) ? __fpclassify (largestSubnormalFloat) : __fpclassifyl (largestSubnormalFloat)) == 3)) [L385] f = __VERIFIER_nondet_float() [L3] COND FALSE !(!cond) [L387] COND TRUE !(f <= largestSubnormalFloat) [L16] COND FALSE !(0) [L16] __assert_fail ("0", "float21.c", 7, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 5.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 55 SDslu, 2 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 1 QuantifiedInterpolants, 56 SizeOfPredicates, 3 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...